Louver lamp shade



Dec. 15, 1942. O, H, wlLuAM 2,305,214

LOUVER LAMP SHADE Filed Feb. 15, 1940 I NVENT OR.

04/ V52 H. W/LL/A M5 BY W261? v ATTORNEY.

Patented Dec. 15, 1942 UNITED STATES PATENT OFFICE LOUVER LAMP SHADEOliver H. Williams, Chicago, 111. Application February 15, 1940, SerialNo. 318,984

1 Claim.

This invention relates to lamp shades and particularly to a novelconstruction of a louver lamp shade.

Such lamp shades are commonly incorporated with cooking ranges or likeproducts which are manufactured on a high production basis. Ordinaryshade structures have failed under production conditions and have provedto be high in cost and troublesome.

The particular object of this invention is to provide a shade structurewhich can be produced as a sturdy, accurate sub-assembly that can beconsistently duplicated at low cost.

Another object is to provide a louver shade structure wherein the lightis more effectively directed or reflected.

Other objects and benefits will be disclosed in the followingdescription and drawing in which:

Fig. 1 is a rear isometric view of my louver lamp shade structure;

Fig. 2 is an enlarged cross-sectional elevation view of my lamp shade asit would appear on the section lines 22 of Fig. 3;

Fig. 3 is an end eleational view of the lamp shade shown in Fig. 1; and

Fig. 4 is an enlarged cross-sectional end elevation view as it wouldappear on the section line 4-4 of Fig. 2.

Now referring to the drawing and at the outset to Fig. 1, I designate mythree louver sections by the numerals II], II, and I2. It will be notedin Fig. 4 that the back sides of the louver sections are flat orvertical and I indicate these vertical sections by the numerals I, I I,and I2, respectively.

When I superimpose the sections one on the other it will be noted thatthe section III rests on the section II at the point I5 and that thelower edge II)" at this point effectively closes the opening between thesections I0 and II. Similarly, the section II rests on the section I2 atI4 and effectively closes this opening between the sections II and I2.It will be understood and appreciated that with the sections in thisposition it will be a comparatively easy matter to jig the sections inuniform relation to each'other with their lower edges III", II", and I2"equidistant and parallel. With the sections in this position I fastenthem together by a support plate I6. This fastening may be accomplishedby any conventional method although in my structure I prefer spotwelding, which is easily accomplished through the flat abutting rearwalls III, I I and I2 with the support plate I6. The support plate I6and the rear walls III, II, and I2 of the sections are perforated in anydesirable manner such as the hole cord and the holes I8, I9, 20, and 2Ifor bracket supports.

The louver sections are further held together and supported by thesupport braces 22 and 23 Which extend through the perforated tops 24 and25 of the sections II and I2. These support braces are fastened in anyconventional manner and in my preferred embodiment I use spot welding.

It will be appreciated that the support plate I6 effectively joins thesections together and with the additional support of the support braces22 and 23 I provide a rigid, sturdy assembly which may be economicallyproduced and accurately duplicated. In this connection it will beunderstood that I utilize the slugs from the perforated sections 24 and25 for the support plate I6 as well as sections thereof for the supportbraces 22 and 23. In this way the material is utilized with a minimum ofwaste to effect the economies desired.

It will further be understood and appreciated that in closing the backwall of my shade that no light is reflected to the rear of the shade butall is directed outwardly. In this connection I form my louvers II andI2 with convex edges to allow for better diffusion of the light outwardas desired.

Having thus described my invention, I claim:

In a louver lamp shade, inverted basin-like louver sections having fiatvertical rear walls, the edges of said rear walls of the superimposedsections abutting the upper edge of the lower adjacent section to closethe opening between said sections and establish a uniform parallelrelationship between the sections, perforations through the top of thelower louver sections providing a hollow interior for a light globe,stepped front support braces fastened under the sections and extendingthrough said perforations, the steps being arranged and proportioned tomaintain the parallel relationship of the louver sections, a supportplate fastened to said vertical rear wall sections to hold the sectionsin permanent horizontal parallel relationship.

OLIVER H. WILLIAMS.

I! for the electricv

